The Collaborative International Dictionary
Hydatoid
Hydatoid \Hy"da*toid\, a. [Gr. "y`dwr, "y`datos, water + -oid.] (Anat.) Resembling water; watery; aqueous; hyaloid.
Wiktionary
hydatoid
a. watery, aqueous n. (context obsolete anatomy English) aqueous humour